Bouvet, Alexandre; Mermoz, Stephane; Le Toan, Thuy; Villard, Ludovic; Mathieu, Renaud; Naidoo, Laven; Asner, Gregory P (2025): Above-ground biomass map of the savannahs and woodlands of continental Africa and Madagascar [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982543
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Published: 2025-05-20 • DOI registered: 2025-06-18
Abstract:
This dataset gives estimates of the woody above-ground biomass (AGB) of the savannahs and woodlands of continental Africa and Madagascar at a 25 meters spatial resolution, obtained from the 2010 ALOS PALSAR mosaic produced by the Japanese Space Exploration Agency (JAXA).
AGB is estimated between 0 and 85 Mg.ha-1 following the methodology described in the referenced publication.
The following land cover classes have been masked:
- Dense forests and flooded forests, using classes 50 (Dense forests) and 160 (Flooded forests) of the ESA CCI Land Cover dataset: https://www.esa-landcover-cci.org/
- Mangroves, using the GMW (Global Mangrove Watch) dataset: https://www.globalmangrovewatch.org/
- Urban areas, using the HBASE (Human Built-Up and Settlement Extent) dataset: http://sedac.ciesin.columbia.edu/data/set/ulandsat-hbase-v1
- Water bodies, using the GSW (Global Surface Waters) dataset: https://global-surface-water.appspot.com/
The data can be used for a wide range of applications, from conservation to carbon accounting.
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The dataset is divided into 10° × 10° tiles. The file names give the coordinates of the upper left corner of each tile (in degrees latitude and longitude).
An additional file is provided: AGB_Bouvet_QGIS_style.qml, which is a QGis style file to visualize the AGB dataset in the QGis software.
Year of estimate: 2010
Projection: Geographic Lat/Lon
Geodetic Datum: WGS-84
Data type: Byte
File type: Geotiff (LZW compression)
Pixel size : 0.8 arcseconds × 0.8 arcseconds (approximately 25m × 25m at Equator)
Pixel value:
- 0 to 85: AGB in tons/ha
- 100: dense forests mask
- 160: flooded forests mask
- 170: mangroves mask
- 190: urban areas mask
- 210: water bodies mask
Related to:
Bouvet, Alexandre; Mermoz, Stephane; Le Toan, Thuy; Villard, Ludovic; Mathieu, Renaud; Naidoo, Laven; Asner, Gregory P (2018): An above-ground biomass map of African savannahs and woodlands at 25 m resolution derived from ALOS PALSAR. Remote Sensing of Environment, 206, 156-173, https://doi.org/10.1016/j.rse.2017.12.030
Funding:
Centre National d'Études Spatiales (CNES) (CNES), grant/award no. BCT_71SC: TOSCA Earth, oceanography, land surfaces and atmosphere programme
Horizon 2020 (H2020), grant/award no. 685761: Bringing Earth Observation Services for Monitoring Dynamic Forest Disturbances to the Users (EOMonDis)
Coverage:
Median Latitude: 1.250000 * Median Longitude: 17.000000 * South-bound Latitude: -35.000000 * West-bound Longitude: -17.500000 * North-bound Latitude: 37.500000 * East-bound Longitude: 51.500000
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Raster graphic, GeoTIFF format | GeoTIFF | Bouvet, Alexandre | Satellite remote sensing (SAT) | ||
| 2 | Raster graphic, GeoTIFF format (File Size) | GeoTIFF (Size) | Bytes | Bouvet, Alexandre | Satellite remote sensing (SAT) | |
| 3 | Binary Object | Binary | Bouvet, Alexandre | Satellite remote sensing (SAT) | ||
| 4 | File content | Content | Bouvet, Alexandre | Satellite remote sensing (SAT) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
90 data points